Welcome to HVAC-Talk.com, a non-DIY site and the ultimate Source for HVAC Information & Knowledge Sharing for the industry professional! Here you can join over 150,000 HVAC Professionals & enthusiasts from around the world discussing all things related to HVAC/R. You are currently viewing as a NON-REGISTERED guest which gives you limited access to view discussions

To gain full access to our forums you must register; for a free account. As a registered Guest you will be able to:

Participate in over 40 different forums and search/browse from nearly 3 million posts.

Hi all. I'm new to this forum and know nothing about AC/Refrigeration/HVAC but I though some of you might have an answer to my question.

I'm restoring a 1956 model boat and it has a period correct horn. This horn was meant to have one of those 1 lb freon cans screwed to the bottom. I can no longer get those cans and even if I could, I would probably want to change the horn. I want to adapt it to air pressure but I don't know what the pressure of those 1 bl cans was. Sorry for the long explanation but does anyone know what the pressure of those 1 lb cans was?

Originally posted by boatbuoy ..............
I'm restoring a 1956 model boat and it has a period correct horn. This horn was meant to have one of those 1 lb freon cans screwed to the bottom. I can no longer get those cans and even if I could, I would probably want to change the horn. I want to adapt it to air pressure but I don't know what the pressure of those 1 bl cans was. Sorry for the long explanation but does anyone know what the pressure of those 1 lb cans was?
Thanks for any replies.

I assume it would take R-12 cans which were dirt cheap back then. The pressure is easily found on a pressure/temperature chart for R-12. At a summer temp. of 85°F. the pressure would be 92 PSI.

go to an auto wreckers and get the air pump out of a cad seville, or any big cad or lincoln town car, they come equipped with a small air compressor for the load leveling feature . usually mounted on the left front fender.